<template>
    <div class="hm-main">
      我是hm-main
      <HmButton></HmButton>
    </div>
  </template>
  
  <script>
  export default {
  
  }
  </script>
  
  <style>
  .hm-main {
      line-height: 400px;
      height: 400px;
      text-align: center;
      font-size: 30px;
      background-color: red;
      color: white;
      margin: 20px 0;
  }
  </style>